$OpenBSD: patch-color_cpp,v 1.1 2017/05/24 19:33:53 espie Exp $

Index: color.cpp
--- color.cpp.orig
+++ color.cpp
@@ -1,6 +1,7 @@
 #include <algorithm>
 #include <math.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "misc.h"
 #include "color.h"
